Marine animals do not break down water molecules into oxygen, just like we don't. They breathe O2 gas that is in solution in the water.
Most animals, including humans, use oxygen for respiration. This process involves taking in oxygen from the atmosphere and using it to break down food molecules to produce energy.
When a plant feeds on its own food, that food is broken down in the same way that it's broken down in an animals body (including yours): with oxygen. The oxygen is needed to break down the carbohydrate molecules and release the energy stored in those molecules. While a plant is photosynthesizing, its producing more than enough oxygen to break down its own food.
This process is known as cellular respiration. During cellular respiration, animals break down food molecules in the presence of oxygen to produce energy, releasing carbon dioxide as a byproduct, which is then exhaled into the atmosphere.
Once molecule of glucose contains 6 atoms of carbon, 12 atoms of hydrogen and 6 atoms of oxygen.
Oxygen
Animals use mitochondria to break down food molecules through a process called cellular respiration. During this process, glucose and oxygen are combined to produce ATP, which is the cell's main energy source.
oxygen :)
Anaerobic Respiration
Carbohidrates are the easiest molecules to break, and when you break molecules you release energy, and heat. So heat is conserved in a molecule, in a way.
Chemicals released into the atmosphere, such as chlorofluorocarbons (CFCs), break ozone down into oxygen molecules and chlorine atoms through a series of chemical reactions. The chlorine atoms then react with ozone molecules, leading to the depletion of the ozone layer.
Yes, they use it to break down the food molecules into energy.
One way to remove four oxygen molecules from a compound is through a reduction reaction that converts the oxygen atoms into water molecules (H2O). This can be achieved by using reducing agents, such as hydrides or metal catalysts, to break the bonds between oxygen atoms and the compound. The resulting water molecules can then be removed by evaporation or filtration.